Snapchat is a multimedia messaging app that allows users to send photos, videos, and messages that disappear after they have been viewed. It was launched in 2011 by Evan Spiegel, Bobby Murphy, and Reggie Brown and has since become popular among younger users for its unique features and playful nature.

Snapchat offers a variety of features, including lenses, filters, and stickers, that allow users to add fun and creative elements to their snaps. It also has a feature called «Stories,» which allows users to share photos and videos with all of their friends for 24 hours before they disappear.

In addition to personal messaging, Snapchat is also used by businesses for advertising and promotion through sponsored lenses and filters, as well as through partnerships with influencers and content creators.

Snapchat is available for free on both Android and iOS devices, and also has a desktop app called «Snap Camera» that allows users to apply filters and lenses to their video calls. While Snapchat is known for its privacy features, such as the disappearing messages, it has also faced criticism for its data collection practices and the potential for user content to be shared without their consent.